mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 20:01:55 +00:00
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
|
#ifndef __UM_SYSTEM_GENERIC_H
|
||
|
|
#define __UM_SYSTEM_GENERIC_H
|
||
|
|
|
||
|
|
#include "asm/arch/system.h"
|
||
|
|
|
||
|
|
#undef switch_to
|
||
|
|
#undef local_irq_save
|
||
|
|
#undef local_irq_restore
|
||
|
|
#undef local_irq_disable
|
||
|
|
#undef local_irq_enable
|
||
|
|
#undef local_save_flags
|
||
|
|
#undef local_irq_restore
|
||
|
|
#undef local_irq_enable
|
||
|
|
#undef local_irq_disable
|
||
|
|
#undef local_irq_save
|
||
|
|
#undef irqs_disabled
|
||
|
|
|
||
|
|
extern void *switch_to(void *prev, void *next, void *last);
|
||
|
|
|
||
|
|
extern int get_signals(void);
|
||
|
|
extern int set_signals(int enable);
|
||
|
|
extern int get_signals(void);
|
||
|
|
extern void block_signals(void);
|
||
|
|
extern void unblock_signals(void);
|
||
|
|
|
||
|
|
#define local_save_flags(flags) do { typecheck(unsigned long, flags); \
|
||
|
|
(flags) = get_signals(); } while(0)
|
||
|
|
#define local_irq_restore(flags) do { typecheck(unsigned long, flags); \
|
||
|
|
set_signals(flags); } while(0)
|
||
|
|
|
||
|
|
#define local_irq_save(flags) do { local_save_flags(flags); \
|
||
|
|
local_irq_disable(); } while(0)
|
||
|
|
|
||
|
|
#define local_irq_enable() unblock_signals()
|
||
|
|
#define local_irq_disable() block_signals()
|
||
|
|
|
||
|
|
#define irqs_disabled() \
|
||
|
|
({ \
|
||
|
|
unsigned long flags; \
|
||
|
|
local_save_flags(flags); \
|
||
|
|
(flags == 0); \
|
||
|
|
})
|
||
|
|
|
||
|
|
extern void *_switch_to(void *prev, void *next, void *last);
|
||
|
|
#define switch_to(prev, next, last) prev = _switch_to(prev, next, last)
|
||
|
|
|
||
|
|
#endif
|